root / trunk / web / dojo / dojox / data / SnapLogicStore.js @ 13
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.data.SnapLogicStore"]){ |
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| 9 | dojo._hasResource["dojox.data.SnapLogicStore"]=true; |
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| 10 | dojo.provide("dojox.data.SnapLogicStore");
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| 11 | dojo.require("dojo.io.script");
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| 12 | dojo.require("dojo.data.util.sorter");
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| 13 | dojo.declare("dojox.data.SnapLogicStore",null,{Parts:{DATA:"data",COUNT:"count"},url:"",constructor:function(_1){ |
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| 14 | if(_1.url){
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| 15 | this.url=_1.url;
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| 16 | } |
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| 17 | this._parameters=_1.parameters;
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| 18 | },_assertIsItem:function(_2){ |
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| 19 | if(!this.isItem(_2)){ |
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| 20 | throw new Error("dojox.data.SnapLogicStore: a function was passed an item argument that was not an item"); |
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| 21 | } |
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| 22 | },_assertIsAttribute:function(_3){ |
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| 23 | if(typeof _3!=="string"){ |
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| 24 | throw new Error("dojox.data.SnapLogicStore: a function was passed an attribute argument that was not an attribute name string"); |
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| 25 | } |
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| 26 | },getFeatures:function(){ |
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| 27 | return {"dojo.data.api.Read":true}; |
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| 28 | },getValue:function(_4,_5,_6){ |
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| 29 | this._assertIsItem(_4);
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| 30 | this._assertIsAttribute(_5);
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| 31 | var i=dojo.indexOf(_4.attributes,_5);
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| 32 | if(i!==-1){ |
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| 33 | return _4.values[i];
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| 34 | } |
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| 35 | return _6;
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| 36 | },getAttributes:function(_7){ |
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| 37 | this._assertIsItem(_7);
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| 38 | return _7.attributes;
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| 39 | },hasAttribute:function(_8,_9){ |
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| 40 | this._assertIsItem(_8);
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| 41 | this._assertIsAttribute(_9);
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| 42 | for(var i=0;i<_8.attributes.length;++i){ |
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| 43 | if(_9==_8.attributes[i]){
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| 44 | return true; |
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| 45 | } |
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| 46 | } |
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| 47 | return false; |
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| 48 | },isItemLoaded:function(_a){ |
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| 49 | return this.isItem(_a); |
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| 50 | },loadItem:function(_b){ |
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| 51 | },getLabel:function(_c){ |
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| 52 | return undefined; |
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| 53 | },getLabelAttributes:function(_d){ |
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| 54 | return null; |
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| 55 | },containsValue:function(_e,_f,_10){ |
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| 56 | return this.getValue(_e,_f)===_10; |
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| 57 | },getValues:function(_11,_12){ |
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| 58 | this._assertIsItem(_11);
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| 59 | this._assertIsAttribute(_12);
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| 60 | var i=dojo.indexOf(_11.attributes,_12);
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| 61 | if(i!==-1){ |
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| 62 | return [_11.values[i]];
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| 63 | } |
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| 64 | return [];
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| 65 | },isItem:function(_13){ |
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| 66 | if(_13&&_13._store===this){ |
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| 67 | return true; |
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| 68 | } |
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| 69 | return false; |
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| 70 | },close:function(_14){ |
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| 71 | },_fetchHandler:function(_15){ |
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| 72 | var _16=_15.scope||dojo.global;
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| 73 | if(_15.onBegin){
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| 74 | _15.onBegin.call(_16,_15._countResponse[0],_15);
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| 75 | } |
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| 76 | if(_15.onItem||_15.onComplete){
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| 77 | var _17=_15._dataResponse;
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| 78 | if(!_17.length){
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| 79 | _15.onError.call(_16,new Error("dojox.data.SnapLogicStore: invalid response of length 0"),_15); |
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| 80 | return;
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| 81 | }else{
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| 82 | if(_15.query!="record count"){ |
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| 83 | var _18=_17.shift();
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| 84 | var _19=[];
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| 85 | for(var i=0;i<_17.length;++i){ |
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| 86 | if(_15._aborted){
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| 87 | break;
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| 88 | } |
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| 89 | _19.push({attributes:_18,values:_17[i],_store:this});
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| 90 | } |
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| 91 | if(_15.sort&&!_15._aborted){
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| 92 | _19.sort(dojo.data.util.sorter.createSortFunction(_15.sort,self)); |
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| 93 | } |
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| 94 | }else{
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| 95 | _19=[({attributes:["count"],values:_17,_store:this})];
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| 96 | } |
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| 97 | } |
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| 98 | if(_15.onItem){
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| 99 | for(var i=0;i<_19.length;++i){ |
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| 100 | if(_15._aborted){
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| 101 | break;
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| 102 | } |
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| 103 | _15.onItem.call(_16,_19[i],_15); |
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| 104 | } |
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| 105 | _19=null;
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| 106 | } |
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| 107 | if(_15.onComplete&&!_15._aborted){
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| 108 | _15.onComplete.call(_16,_19,_15); |
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| 109 | } |
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| 110 | } |
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| 111 | },_partHandler:function(_1a,_1b,_1c){ |
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| 112 | if(_1c instanceof Error){ |
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| 113 | if(_1b==this.Parts.DATA){ |
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| 114 | _1a._dataHandle=null;
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| 115 | }else{
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| 116 | _1a._countHandle=null;
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| 117 | } |
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| 118 | _1a._aborted=true;
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| 119 | if(_1a.onError){
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| 120 | _1a.onError.call(_1a.scope,_1c,_1a); |
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| 121 | } |
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| 122 | }else{
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| 123 | if(_1a._aborted){
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| 124 | return;
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| 125 | } |
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| 126 | if(_1b==this.Parts.DATA){ |
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| 127 | _1a._dataResponse=_1c; |
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| 128 | }else{
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| 129 | _1a._countResponse=_1c; |
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| 130 | } |
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| 131 | if((!_1a._dataHandle||_1a._dataResponse!==null)&&(!_1a._countHandle||_1a._countResponse!==null)){ |
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| 132 | this._fetchHandler(_1a);
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| 133 | } |
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| 134 | } |
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| 135 | },fetch:function(_1d){ |
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| 136 | _1d._countResponse=null;
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| 137 | _1d._dataResponse=null;
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| 138 | _1d._aborted=false;
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| 139 | _1d.abort=function(){ |
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| 140 | if(!_1d._aborted){
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| 141 | _1d._aborted=true;
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| 142 | if(_1d._dataHandle&&_1d._dataHandle.cancel){
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| 143 | _1d._dataHandle.cancel(); |
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| 144 | } |
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| 145 | if(_1d._countHandle&&_1d._countHandle.cancel){
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| 146 | _1d._countHandle.cancel(); |
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| 147 | } |
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| 148 | } |
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| 149 | }; |
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| 150 | if(_1d.onItem||_1d.onComplete){
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| 151 | var _1e=this._parameters||{}; |
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| 152 | if(_1d.start){
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| 153 | if(_1d.start<0){ |
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| 154 | throw new Error("dojox.data.SnapLogicStore: request start value must be 0 or greater"); |
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| 155 | } |
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| 156 | _1e["sn.start"]=_1d.start+1; |
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| 157 | } |
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| 158 | if(_1d.count){
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| 159 | if(_1d.count<0){ |
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| 160 | throw new Error("dojox.data.SnapLogicStore: request count value 0 or greater"); |
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| 161 | } |
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| 162 | _1e["sn.limit"]=_1d.count;
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| 163 | } |
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| 164 | _1e["sn.content_type"]="application/javascript"; |
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| 165 | var _1f=this; |
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| 166 | var _20=function(_21,_22){ |
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| 167 | if(_21 instanceof Error){ |
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| 168 | _1f._fetchHandler(_21,_1d); |
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| 169 | } |
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| 170 | }; |
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| 171 | var _23={url:this.url,content:_1e,timeout:60000,callbackParamName:"sn.stream_header",handle:dojo.hitch(this,"_partHandler",_1d,this.Parts.DATA)}; |
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| 172 | _1d._dataHandle=dojo.io.script.get(_23); |
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| 173 | } |
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| 174 | if(_1d.onBegin){
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| 175 | var _1e={};
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| 176 | _1e["sn.count"]="records"; |
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| 177 | _1e["sn.content_type"]="application/javascript"; |
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| 178 | var _23={url:this.url,content:_1e,timeout:60000,callbackParamName:"sn.stream_header",handle:dojo.hitch(this,"_partHandler",_1d,this.Parts.COUNT)}; |
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| 179 | _1d._countHandle=dojo.io.script.get(_23); |
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| 180 | } |
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| 181 | return _1d;
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| 182 | }}); |
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| 183 | } |